21304231411 has 8 divisors (see below), whose sum is σ = 22559479344. Its totient is φ = 20049212160.

The previous prime is 21304231409. The next prime is 21304231433. The reversal of 21304231411 is 11413240312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21304231411 - 2¹ = 21304231409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21304231811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157756 + ... + 259798.

It is an arithmetic number, because the mean of its divisors is an integer number (2819934918).

Almost surely, 2^21304231411 is an apocalyptic number.

21304231411 is a deficient number, since it is larger than the sum of its proper divisors (1255247933).

21304231411 is a wasteful number, since it uses less digits than its factorization.

21304231411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114341.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21304231411 its reverse (11413240312), we get a palindrome (32717471723).

The spelling of 21304231411 in words is "twenty-one billion, three hundred four million, two hundred thirty-one thousand, four hundred eleven".